Silo.



Patented June 24, I902.

0. F. WALL|HAN. SILO.

(Application filed. May 24. 1901.)

(No Model.)

IN VE N TOR A W/TNESSES:? I

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UNITED STATES PATENT OFFICE.

ORLANDO FLOW'ER WALLIHAN, OF RELIANCE, VIRGINIA.

SILO.

SPECIFICATION forming part of Letters Patent No. 703,324, dated June 24,1902.

Application filed May 24, 1901. Serial No. 61,743. (No model.)

To all whom it may concern:

Be it known that I, ORLANDO FLOWER WAL- LIHAN, of Reliance, in thecounty of Varren and State of Virginia, have invented a new and usefulImprovement in Silos, of which the following is a specification.

It is the object of my invention to provide an improved silo orinclosure for preserving ensilage or green fodder.

It is very desirable and, in fact, necessary to attainment of the bestresult in preservation of fodder that the vertical wall of a silo shallhave no acute angles or corners, and therefore a circular form is theideal one. This form is, however, difficult to construct and alsoexpensive, and I have devised a silo of polygonal shape which closelyapproximates the circular and have applied cementholding laths theretoin such manner that the cement does not become cracked or detached byvertical expansion of the silo-Wall.

The details of construction are as hereinafter described, referencebeing bad to accompanying drawings, in which- Figure 1 is a plan View ofthe vertical wooden wall of my improvedsilo. Fig. 2 is a side view of aportion of the same. Fig. 3 is an enlarged vertical section of a portionof the silo-wall provided with the cement lining. Fig. 4 is aperspective View of a portion of the inner side of the silo-wall withlath skeleton, applied as required, to fur the cement. Fig. 5 is a planview illustrating the manner of sawing a board to produce the particularsections or pieces required to form the silowall.

The vertical wall A of the silo describes a many-sided polygon, therebeing twelve equal sides a and obtuse angles 12 of thirty degrees, asshown in Fig. 1. This number of sides has been demonstrated to bepreferable. The same is formed of a series of boards or planks c, laidflatwise and horizontally one upon another and secured together bynails, as shown in Fig. 1. Each board or plank c has straight sides andends, the latter being out at an angle and the inclinations being inopposite directions instead of parallel, so that each end presents anacute and an obtuse angle. The

below for a portion of the length of each, and

one inclined end of each abuts the next board in the same plane orhorizontal series, the other inclined endappearing on the outer side ofthe structure at an angle 1) thereof.

Doors and a suitable cover are provided in practice, but omitted fromthe drawings.

The inner side of the polygonal wall A is covered with a thick coat orlining B of hydraulic cement, as shown in Figs. 1 and 3. To hold this, Isecure three laths d, Fig. 4, horizontally parallel to the inner surfaceof each of the plane sides a, and to such furring d I nail verticallaths e,which serve as a carrier or support for the cement B. The woodenwall A expands vertically by effect of moisture and contracts whendried, more or less. Such expansion and contraction is chiefly taken upby the nails holding the laths e in place Without affecting the body ofthe cement B to a degree capable of producing cracks, which it isparticularly desirable to avoid in order to prevent a'dmissionof air andthe consequent deterioration of the fodder stored in the silo. Infurther explanation of this feature of my invention 1 will state thatthe essential thing is the arrangement of the cement-carrying laths e atright angles to the'wooden strips 0, or rather to the grain of the same,and when the wall A expands vertically the nails securing the said lathsare bent or inclined slightly up or down in a degree corresponding tosuch expansion of the wall; but since the laths remain spaced the samedistance apart it is apparent the cement body B will retain its solidform and present an unbroken face. This result is of the greatestimportance in silos, since it insures an almost perfect exclusion of airand moisture.

What I claim is The improved silo having the form of a many-sidedpolygon and composed of Wooden I presenting an unbroken surface, asshown strips,or secti0ns,laid horizontally and lapped and described.

upon each other as described, furring-laths secured to the inner side ofthe polygonal Wall, and a series of cement-carrying laths nailedvertically upon such furring, and the cement coat applied to theVertical laths and ORLANDO FLOWER WA LLIHAN.

Witnesses:

J. D. FORSYTH, J. F. FORSYTH.

